- of or relating to gypsum.
Origin of gypseous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for gypseous
Delicate objects in gypseous alabaster can only be safely cleaned with benzol, or with pure oil of turpentine.
The gypseous variety is also bronzed and hardened in a similar way to that adopted for casts in the latter substance.
A warrior in armor with a gypseous pipe in his hand leans against a table and blows the smoke far away of himself.A Tramp Abroad, Complete
Mark Twain (Samuel Clemens)
In Cheshire and Lancashire the gypseous and saliferous red shales and loams of the Trias are between 1000 and 1500 feet thick.A Manual of Elementary Geology
But this is the case; we find those fissures filled both with calcareous, gypseous, and pyritous substances.Theory of the Earth, Volume 1 (of 4)